From: Michael Tokarev <mjt@tls•msk.ru>
To: Andi Kleen <ak@suse•de>
Cc: linux-mips@linux-mips•org, linux-ia64@vger•kernel.org,
Ian Molton <spyro@f2s•com>, David Howells <dhowells@redhat•com>,
linuxppc-dev@ozlabs•org, Greg Ungerer <gerg@uclinux•org>,
sparclinux@vger•kernel.org,
Miles Bader <uclinux-v850@lsi•nec.co.jp>,
Yoshinori Sato <ysato@users•sourceforge.jp>,
Hirokazu Takata <takata@linux-m32r•org>,
linuxsh-dev@lists•sourceforge.net,
Linus Torvalds <torvalds@osdl•org>,
Ivan Kokshaysky <ink@jurassic•park.msu.ru>,
Richard Henderson <rth@twiddle•net>,
Akinobu Mita <mita@miraclelinux•com>,
Chris Zankel <chris@zankel•net>,
dev-etrax@axis•com, ultralinux@vger•kernel.org,
linux-m68k@lists•linux-m68k.org, linux-kernel@vger•kernel.org,
linuxsh-shmedia-dev@lists•sourceforge.net, linux390@de•ibm.com,
Russell King <rmk@arm•linux.org.uk>,
parisc-linux@parisc-linux•org
Subject: Re: [patch 14/44] generic hweight{64,32,16,8}()
Date: Wed, 01 Feb 2006 12:26:10 +0300 [thread overview]
Message-ID: <43E07EB2.4020409@tls.msk.ru> (raw)
In-Reply-To: <200602011006.09596.ak@suse.de>
Andi Kleen wrote:
> On Wednesday 01 February 2006 10:02, Akinobu Mita wrote:
>
>>+static inline unsigned int hweight32(unsigned int w)
[]
> How large are these functions on x86? Maybe it would be better to not inline them,
> but put it into some C file out of line.
hweight8 47 bytes
hweight16 76 bytes
hweight32 97 bytes
hweight64 56 bytes (NOT inlining hweight32)
hweight64 197 bytes (inlining hweight32)
Those are when compiled as separate non-inlined functions,
with pushl %ebp and ret.
/mjt
next prev parent reply other threads:[~2006-02-01 9:52 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20060201090224.536581000@localhost.localdomain>
2006-02-01 9:02 ` [patch 06/44] generic __{, test_and_}{set, clear, change}_bit() and test_bit() Akinobu Mita
2006-02-01 9:02 ` [patch 10/44] generic fls64() Akinobu Mita
2006-02-01 9:02 ` [patch 12/44] generic sched_find_first_bit() Akinobu Mita
2006-02-03 3:58 ` [parisc-linux] " Grant Grundler
2006-02-01 9:02 ` [patch 14/44] generic hweight{64,32,16,8}() Akinobu Mita
2006-02-01 9:06 ` Andi Kleen
2006-02-01 9:26 ` Michael Tokarev [this message]
2006-02-01 10:24 ` Andi Kleen
2006-02-02 12:50 ` Akinobu Mita
2006-02-02 1:26 ` Gabriel Paubert
2006-02-06 11:52 ` Akinobu Mita
2006-02-03 8:31 ` Ulrich Eckhardt
2006-02-01 9:02 ` [patch 31/44] powerpc: use generic bitops Akinobu Mita
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